Deep Marginal Acquisition With Thermacut Bur Vs. Functional Crown Lengthening in Deep Carious Lesions

Not Applicable

Recruiting

• Conditions: Deep Caries
• Interventions: Procedure: deep marginal acquisition using thermacut bur

• Registration Number: NCT06205459
• Lead Sponsor: Cairo University

Brief Summary

this clinical trial is conducted to compare between deep marginal acquistion by the means of thermacut bur Vs. functional crown lengthening in exposing deep subgingival interproximal cervical lesions

Detailed Description

Deep subgingival margins pose a great difficulty during restorative work with composite restorations. Exposing cavity margins is paramount in order to attain proper isolation, matrix adaptation and composite placement.

Several methods have been proposed to overcome the problem of exposing deep margins; functional crown lengthening is considered the gold standard of care regarding exposure of deep margins.

However, functional crown lengthening can pose many problems including the risk of root exposure, furcation involvement and compromising crown root ratio, besides risk of thread exposure if it is done beside implant, removal of bone from adjacent teeth and from buccal and lingual walls in order to create smooth bone architecture, and the complications of surgery such as post-operative pain, inflammation and edema and the risk of excessive bleeding.

Deep marginal acquisition and deep marginal extension (DMA \& DME) are considered as a viable option in treating deep subgingival extended margins.

Several methods regarding deep marginal acquisition have been proposed including the use of diode laser and Electrosurgery, there is another protocol for exposing the gingival seat by the use of thermacut bur.

The rationale behind conducting this research is to propose an easy and predictable way to expose deep subgingival margins, without the need to perform surgical intervention.

The technique is done by clinicians with good outcomes, but never been tested or validated, this study is performed to verify whether this test should be validated or not.

Study Timeline

• Study First Submitted: 2020-04-26
• Status Verified: 2024-01
• Study First Submitted QC: 2024-01-11
• Last Update Submitted: 2024-01-11
• Study First Posted: 2024-01-16
• Last Update Posted: 2024-01-16
• Study Start: 2024-02-02
• Primary Completion: 2025-02-01
• Study Completion: 2025-04-01

Recruitment & Eligibility

• Status: RECRUITING
• Sex: All
• Target Recruitment: 30

Inclusion Criteria

• Subject not less than 18 years of age

1. Males or females
2. Community-dwelling
3. Have at least one deep subgingival interproximal carious lesion.
4. Can comply to oral hygiene measures or with good oral hygiene
5. Have sufficient cognitive ability to

5- Understand consent procedures.

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Exclusion Criteria

1. Patients less than 18 years old.
2. Disabilities:
3. Systemic diseases or severe medically compromised. (Cardiovascular disorder, diabetes, hypertensive, epileptic).
4. Lack of compliance.
5. Gingival hyperplasia, blood disorder.
6. Cognitive impairment.
7. Attachment loss signs of periodontal disease.

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
intervention	deep marginal acquisition using thermacut bur	deep marginal acquisition using thermacut bur from dentsply
control	deep marginal acquisition using thermacut bur	functional crown lengthening

Primary Outcome Measures

Name	Time	Method
patient satisfaction: visual analogue scale	immediate post operative, 3 month, 6 month and 1 year	using visual analogue scale

Secondary Outcome Measures

Name	Time	Method
Pocket depth and biological width	immediate post operative, 3 month, 6 month and 1 year	Graded Periodontal Probe and (digital radiograph) bitewing with paralleling technique

Trial Locations

Locations (1)

Faculty of dentistry Cairo university; 🇪🇬 Cairo, Egypt